486 lines
12 KiB
C
486 lines
12 KiB
C
#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <fcntl.h>
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#include <sys/epoll.h>
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#include "ecore_wl_private.h"
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struct _dnd_task
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{
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void *data;
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Ecore_Fd_Cb cb;
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};
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struct _dnd_read_ctx
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{
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int epoll_fd;
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struct epoll_event *ep;
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};
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/* local function prototypes */
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static void _ecore_wl_dnd_offer(void *data, struct wl_data_offer *wl_data_offer EINA_UNUSED, const char *type);
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static void _ecore_wl_dnd_cb_enter_free(void *data EINA_UNUSED, void *event);
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static void _ecore_wl_dnd_data_source_target(void *data, struct wl_data_source *source, const char *mime_type);
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static void _ecore_wl_dnd_data_source_send(void *data, struct wl_data_source *source, const char *mime_type, int32_t fd);
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static void _ecore_wl_dnd_data_source_cancelled(void *data, struct wl_data_source *source);
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static void _ecore_wl_dnd_source_receive_data(Ecore_Wl_Dnd_Source *source, const char *type);
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/* wayland listeners */
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static const struct wl_data_offer_listener _ecore_wl_data_offer_listener =
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{
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_ecore_wl_dnd_offer,
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};
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static const struct wl_data_source_listener _ecore_wl_data_source_listener =
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{
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_ecore_wl_dnd_data_source_target,
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_ecore_wl_dnd_data_source_send,
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_ecore_wl_dnd_data_source_cancelled
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};
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extern Ecore_Wl_Dnd *glb_dnd;
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EAPI Ecore_Wl_Dnd *
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ecore_wl_dnd_get()
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{
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return glb_dnd;
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}
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EAPI Eina_Bool
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ecore_wl_dnd_start_drag(Ecore_Wl_Dnd *dnd EINA_UNUSED)
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{
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//TODO:
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return EINA_TRUE;
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}
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EAPI Eina_Bool
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ecore_wl_dnd_set_selection(Ecore_Wl_Dnd *dnd, const char **types_offered)
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{
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char **p;
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const char **type;
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dnd->data_source = _ecore_wl_create_data_source(dnd->ewd);
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/* free old types */
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if (dnd->types_offered.data)
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{
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wl_array_for_each(p, &dnd->types_offered)
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free(*p);
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wl_array_release(&dnd->types_offered);
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wl_array_init(&dnd->types_offered);
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}
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for (type = types_offered; *type; type++)
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{
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p = wl_array_add(&dnd->types_offered, sizeof(*p));
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*p = strdup(*type);
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wl_data_source_offer(dnd->data_source, *p);
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}
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wl_data_source_add_listener(dnd->data_source, &_ecore_wl_data_source_listener, dnd);
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_ecore_wl_input_set_selection(dnd->input, dnd->data_source);
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return EINA_TRUE;
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}
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EAPI Eina_Bool
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ecore_wl_dnd_get_selection(Ecore_Wl_Dnd *dnd, const char *type)
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{
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char **p;
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Ecore_Wl_Input *input;
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input = dnd->input;
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if (!input->selection_source) return EINA_FALSE;
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wl_array_for_each(p, &input->selection_source->types)
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if (strcmp(type, *p) == 0) break;
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if (!*p) return EINA_FALSE;
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_ecore_wl_dnd_source_receive_data(input->selection_source, type);
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return EINA_TRUE;
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}
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EAPI Eina_Bool
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ecore_wl_dnd_selection_has_owner(Ecore_Wl_Dnd *dnd)
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{
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Ecore_Wl_Input *input;
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input = dnd->input;
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return (input->selection_source != NULL);
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}
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/* local functions */
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static void
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_ecore_wl_dnd_data_source_target(void *data EINA_UNUSED, struct wl_data_source *source EINA_UNUSED, const char *mime_type EINA_UNUSED)
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{
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//TODO:
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}
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static void
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_ecore_wl_dnd_cb_data_source_send_free(void *data EINA_UNUSED, void *event)
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{
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Ecore_Wl_Event_Data_Source_Send *ev;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!(ev = event)) return;
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free(ev->type);
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free(ev);
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}
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static void
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_ecore_wl_dnd_data_source_send(void *data, struct wl_data_source *source EINA_UNUSED, const char *mime_type, int32_t fd)
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{
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Ecore_Wl_Event_Data_Source_Send *event;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!data) return;
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if (!(event = calloc(1, sizeof(Ecore_Wl_Event_Data_Source_Send)))) return;
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event->type = strdup(mime_type);
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event->fd = fd;
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ecore_event_add(ECORE_WL_EVENT_DATA_SOURCE_SEND, event, _ecore_wl_dnd_cb_data_source_send_free, NULL);
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}
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static void
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_ecore_wl_dnd_data_source_cancelled(void *data EINA_UNUSED, struct wl_data_source *source)
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{
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wl_data_source_destroy(source);
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}
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void
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_ecore_wl_dnd_add(Ecore_Wl_Input *input, struct wl_data_device *data_device EINA_UNUSED, struct wl_data_offer *offer)
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{
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Ecore_Wl_Dnd_Source *source;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!(source = malloc(sizeof(Ecore_Wl_Dnd_Source)))) return;
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wl_array_init(&source->types);
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source->refcount = 1;
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source->input = input;
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source->offer = offer;
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wl_data_offer_add_listener(source->offer,
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&_ecore_wl_data_offer_listener, source);
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}
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void
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_ecore_wl_dnd_enter(void *data, struct wl_data_device *data_device EINA_UNUSED, unsigned int timestamp EINA_UNUSED, struct wl_surface *surface, wl_fixed_t x, wl_fixed_t y, struct wl_data_offer *offer)
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{
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Ecore_Wl_Event_Dnd_Enter *event;
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Ecore_Wl_Input *input;
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Ecore_Wl_Window *win;
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char **p;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if ((!(input = data)) || (!offer)) return;
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if (!(input->drag_source = wl_data_offer_get_user_data(offer)))
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return;
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win = wl_surface_get_user_data(surface);
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// input->pointer_focus = win;
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p = wl_array_add(&input->drag_source->types, sizeof(*p));
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*p = NULL;
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if (!(event = calloc(1, sizeof(Ecore_Wl_Event_Dnd_Enter)))) return;
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event->win = win->id;
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if (input->drag_source->input)
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{
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if (input->drag_source->input->keyboard_focus)
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event->source = input->drag_source->input->keyboard_focus->id;
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}
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event->position.x = wl_fixed_to_int(x);
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event->position.y = wl_fixed_to_int(y);
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event->num_types = input->drag_source->types.size;
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event->types = input->drag_source->types.data;
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ecore_event_add(ECORE_WL_EVENT_DND_ENTER, event,
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_ecore_wl_dnd_cb_enter_free, NULL);
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}
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void
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_ecore_wl_dnd_leave(void *data, struct wl_data_device *data_device EINA_UNUSED)
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{
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Ecore_Wl_Input *input;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!(input = data)) return;
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/* FIXME: NB: This MAY need to raise a wl_event_dnd_leave for the
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* source window */
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_ecore_wl_dnd_del(input->drag_source);
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input->drag_source = NULL;
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}
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void
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_ecore_wl_dnd_motion(void *data, struct wl_data_device *data_device EINA_UNUSED, unsigned int timestamp EINA_UNUSED, wl_fixed_t x, wl_fixed_t y)
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{
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Ecore_Wl_Event_Dnd_Position *event;
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Ecore_Wl_Input *input;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!(input = data)) return;
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input->sx = wl_fixed_to_int(x);
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input->sy = wl_fixed_to_int(y);
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if (!(event = calloc(1, sizeof(Ecore_Wl_Event_Dnd_Position)))) return;
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if (input->drag_source)
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{
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if (input->drag_source->input)
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{
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if (input->drag_source->input->pointer_focus)
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event->win = input->drag_source->input->pointer_focus->id;
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if (input->drag_source->input->keyboard_focus)
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event->source = input->drag_source->input->keyboard_focus->id;
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}
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}
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event->position.x = input->sx;
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event->position.y = input->sy;
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ecore_event_add(ECORE_WL_EVENT_DND_POSITION, event, NULL, NULL);
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}
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void
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_ecore_wl_dnd_drop(void *data, struct wl_data_device *data_device EINA_UNUSED)
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{
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Ecore_Wl_Event_Dnd_Drop *event;
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Ecore_Wl_Input *input;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!(input = data)) return;
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if (!(event = calloc(1, sizeof(Ecore_Wl_Event_Dnd_Drop)))) return;
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if (input->drag_source)
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{
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if (input->drag_source->input)
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{
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if (input->drag_source->input->pointer_focus)
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event->win = input->drag_source->input->pointer_focus->id;
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if (input->drag_source->input->keyboard_focus)
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event->source = input->drag_source->input->keyboard_focus->id;
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}
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}
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event->position.x = input->sx;
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event->position.y = input->sy;
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ecore_event_add(ECORE_WL_EVENT_DND_DROP, event, NULL, NULL);
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}
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void
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_ecore_wl_dnd_selection(void *data, struct wl_data_device *data_device EINA_UNUSED, struct wl_data_offer *offer)
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{
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Ecore_Wl_Input *input;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!(input = data)) return;
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if (input->selection_source) _ecore_wl_dnd_del(input->selection_source);
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input->selection_source = NULL;
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if (offer)
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{
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char **p;
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input->selection_source = wl_data_offer_get_user_data(offer);
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p = wl_array_add(&input->selection_source->types, sizeof(*p));
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*p = NULL;
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}
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}
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void
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_ecore_wl_dnd_del(Ecore_Wl_Dnd_Source *source)
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{
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!source) return;
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source->refcount--;
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if (source->refcount == 0)
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{
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char **p;
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wl_data_offer_destroy(source->offer);
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for (p = source->types.data; *p; p++)
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free(*p);
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wl_array_release(&source->types);
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free(source);
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}
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}
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/* local functions */
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static void
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_ecore_wl_dnd_offer(void *data, struct wl_data_offer *wl_data_offer EINA_UNUSED, const char *type)
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{
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Ecore_Wl_Dnd_Source *source;
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char **p;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!(source = data)) return;
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p = wl_array_add(&source->types, sizeof(*p));
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*p = strdup(type);
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}
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static void
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_ecore_wl_dnd_cb_enter_free(void *data EINA_UNUSED, void *event)
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{
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Ecore_Wl_Event_Dnd_Enter *ev;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!(ev = event)) return;
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free(ev);
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}
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static void
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_ecore_wl_dnd_cb_selection_data_ready_free(void *data EINA_UNUSED, void *event)
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{
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Ecore_Wl_Event_Selection_Data_Ready *ev;
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LOGFN(__FILE__, __LINE__, __FUNCTION__);
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if (!(ev = event)) return;
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free(ev->data);
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free(ev);
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}
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static Eina_Bool
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_ecore_wl_dnd_read_data(void *data, Ecore_Fd_Handler *fd_handler EINA_UNUSED)
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{
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int len;
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char buffer[4096];
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Ecore_Wl_Dnd_Source *source;
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Ecore_Wl_Event_Selection_Data_Ready *event;
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Eina_Bool ret;
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source = data;
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len = read(source->fd, buffer, sizeof buffer);
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if (!(event = calloc(1, sizeof(Ecore_Wl_Event_Selection_Data_Ready))))
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return ECORE_CALLBACK_CANCEL;
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if (len <= 0)
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{
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close(source->fd);
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_ecore_wl_dnd_del(source);
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event->done = EINA_TRUE;
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event->data = NULL;
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event->len = 0;
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ret = ECORE_CALLBACK_CANCEL;
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}
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else
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{
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event->data = malloc(len + 1);
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if (!event->data) return ECORE_CALLBACK_CANCEL;
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strncpy(event->data, buffer, len);
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event->data[len] = '\0';
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event->len = len;
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event->done = EINA_FALSE;
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ret = ECORE_CALLBACK_RENEW;
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}
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ecore_event_add(ECORE_WL_EVENT_SELECTION_DATA_READY, event,
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_ecore_wl_dnd_cb_selection_data_ready_free, NULL);
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return ret;
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}
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static Eina_Bool
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_ecore_wl_dnd_idler_cb(void *data)
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{
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struct _dnd_read_ctx *ctx;
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struct _dnd_task *task;
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int count, i;
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ctx = data;
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count = epoll_wait(ctx->epoll_fd, ctx->ep, 1, 0);
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for (i = 0; i < count; i++)
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{
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task = ctx->ep->data.ptr;
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if (task->cb(task->data, NULL) == ECORE_CALLBACK_CANCEL)
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{
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free(ctx->ep);
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free(task);
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free(ctx);
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return ECORE_CALLBACK_CANCEL;
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}
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}
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return ECORE_CALLBACK_RENEW;
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}
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static void
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_ecore_wl_dnd_source_receive_data(Ecore_Wl_Dnd_Source *source, const char *type)
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{
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int epoll_fd;
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struct epoll_event *ep = NULL;
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struct _dnd_task *task = NULL;
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struct _dnd_read_ctx *read_ctx = NULL;
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int p[2];
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if (pipe2(p, O_CLOEXEC) == -1)
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return;
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wl_data_offer_receive(source->offer, type, p[1]);
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close(p[1]);
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/* Due to http://trac.enlightenment.org/e/ticket/1208,
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* use epoll and idle handler instead of ecore_main_fd_handler_add() */
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ep = calloc(1, sizeof(struct epoll_event));
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if (!ep) goto err;
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task = calloc(1, sizeof(struct _dnd_task));
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if (!task) goto err;
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read_ctx = calloc(1, sizeof(struct _dnd_read_ctx));
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if (!read_ctx) goto err;
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epoll_fd = epoll_create1(0);
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if (epoll_fd < 0) goto err;
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task->data = source;
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task->cb = _ecore_wl_dnd_read_data;
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ep->events = EPOLLIN;
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ep->data.ptr = task;
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if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, p[0], ep) < 0) goto err;
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read_ctx->epoll_fd = epoll_fd;
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read_ctx->ep = ep;
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if (!ecore_idler_add(_ecore_wl_dnd_idler_cb, read_ctx)) goto err;
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source->refcount++;
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source->fd = p[0];
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return;
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err:
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if (ep) free(ep);
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if (task) free(task);
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if (read_ctx) free(read_ctx);
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close(p[0]);
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return;
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}
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